I think the guy is spot on! I've had many issues with my E55 and it was like pulling teeth for them to cover any of the issues. I had bad catalytic converters that they didn't want to replace. Hell, they flat refused until I spoke to the EPA. The EPA told me how to handle the issue and Mercedes finally gave in after I threatened to have the EPA issue a discovery on all catalytic converter failures on all Mercedes Benz cars of the same model year. It was a bunch of crap! They should have replaced them without a fight. Mercedes is going down the wrong road with all the electronic gizmos. The only thing keeping them in the game are their stylists and the bad-ass AMG engines.